Well, thank you. I'm enjoying this conversation as well.
As for Harkon, I do not know. Perhaps Dawnguard will explain the inconsistency between the description of Skyrim's vampires in Immortal Blood and in the game. Speaking of which, I was happy to find out the identity of the vampire lord in the Laid to Rest. Since they tied in their vampire mythos from Oblivion I'm encouraged that they will handle Dawnguard's vampire narrative well.
We shall see
